That video was just sad. These people don't seem 'bad' just lost. They are lost in life and need help.
When I was younger I felt like no woman would ever date or love me, I had social anxiety, more so around women, and you really do never overcome it, now days I am very happy, I have a girlfriend who loves me and a job that pays well enough, I go outside a lot. I love getting away from the computer.
I do often wandering into self loathing and put myself down, but my girlfriend has been a great help in getting me to feel positive about myself to a point where I make it my goal on these forums to be positive (see sig)